COP9 constitutive photomorphogenic homolog subunit 5 (Arabidopsis), also known as COPS5 or Csn5, is a

gene In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba ...

conserved from

human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, culture, ...

s to

Saccharomyces cerevisiae ''Saccharomyces cerevisiae'' () (brewer's yeast or baker's yeast) is a species of yeast (single-celled fungus microorganisms). The species has been instrumental in winemaking, baking, and brewing since ancient times. It is believed to have been o ...

Function

The protein encoded by this gene is one of the eight subunits of

COP9 signalosome COP9 (Constitutive photomorphogenesis 9) signalosome (CSN) is a protein complex with isopeptidase activity. It catalyses the hydrolysis of NEDD8 protein from the cullin subunit of Cullin-RING ubiquitin ligases (CRL). Therefore, it is responsible f ...

, a highly conserved protein complex that functions as an important regulator in multiple signaling pathways. The structure and function of COP9 signalosome is similar to that of the 19S regulatory particle of 26S proteasome. COP9 signalosome has been shown to interact with SCF-type E3 ubiquitin ligases and act as a positive regulator of E3 ubiquitin ligases. This protein is reported to be involved in the degradation of cyclin-dependent kinase inhibitor CDKN1B/p27Kip1. It is also known to be a coactivator that increases the specificity of JUN/AP1 transcription factors.

Interactions

COP9 constitutive photomorphogenic homolog subunit 5 has been shown to

interact Advocates for Informed Choice, dba interACT or interACT Advocates for Intersex Youth, is a 501(c)(3) nonprofit organization using innovative strategies to advocate for the legal and human rights of children with intersex traits. The organizati ...

with

Macrophage migration inhibitory factor Macrophage migration inhibitory factor (MIF), also known as glycosylation-inhibiting factor (GIF), L-dopachrome isomerase, or phenylpyruvate tautomerase is a protein that in humans is encoded by the ''MIF'' gene. MIF is an important regulator of i ...

GFER Growth factor, augmenter of liver regeneration (ERV1 homolog, S. cerevisiae), also known as GFER, or Hepatopoietin is a protein which in humans is encoded by the ''GFER'' gene. This gene is also known as essential for respiration and vegatative gr ...

BCL3 B-cell lymphoma 3-encoded protein is a protein that in humans is encoded by the ''BCL3'' gene. This gene is a proto-oncogene candidate. It is identified by its translocation into the immunoglobulin alpha-locus in some cases of B-cell leukemia. T ...

Ubiquitin carboxy-terminal hydrolase L1 Ubiquitin carboxy-terminal hydrolase L1 (, ''ubiquitin C-terminal hydrolase'', ''UCH-L1'') is a deubiquitinating enzyme. Function UCH-L1 is a member of a gene family whose products hydrolyze small C-terminal adducts of ubiquitin to generate ...

S100A7 S100 calcium-binding protein A7 (S100A7), also known as psoriasin, is a protein that in humans is encoded by the ''S100A7'' gene. Function S100A7 is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 prot ...

and

C-jun Transcription factor Jun is a protein that in humans is encoded by the ''JUN'' gene. c-Jun, in combination with protein c-Fos, forms the AP-1 early response transcription factor. It was first identified as the Fos-binding protein p39 and only lat ...

Function

Interactions

See also

References

External links

Further reading